Schedule: the flights that flew on Wednesday, Nov 4, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

UNITED · FLIGHT UA 1777 SCHEDULED · TYPICAL SCHEDULE
Tomorrow

UA 1777 · SFO → YVR

departs 1:57 PM PT · arrives 5:24 PM MST
Forecast issued Tue 1:00 PM ET · 28h before departure

UA 1777 isn’t flying SFO → YVR on Wed, Nov 11

This listing came from a typical schedule. According to the FAA, UA 1777 flies these legs that day: